Data Structure Information
This section gives an overview of the OS NGD data structure and details the data available for each OS NGD theme, collection and feature type.
Overview of the OS NGD data structure
OS NGD data is different from our other products because you access it from a single source where you'll find the data you need without having to download whole datasets. It also has a simpler data structure, designed to help you answer questions and develop more intelligent solutions, with quicker loading and implementation.

OS NGD data has been categorised to make it easier and quicker for you to discover the data you need:
Themes: Geographic data of Great Britain is structured into nine themes of related items.
Collections: Each theme is made up of one or more collections, which in turn have feature types.
Feature types: Feature types are the most granular level, with objects (features) grouped by geometry or classification.

Explore OS NGD data
Content in this section is ordered by themes, collections and feature types, mirroring the OS NGD data structure itself. This level of categorisation should make it easier and quicker for you to discover the data you need.
For example, if you are interested in water or river data, then you should select 'OS NGD Water' from the card below or the left-hand-side navigation menu, then drill down through the collections to the water feature type(s) that interest you.
What's next?
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